Adhesive applying means for coating receptacle closure caps



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C. JOHNSON ETAL ADHESIVE APPLYING MEANS FOR COATING RECEPTACLE CLOSURE CAPS July 1, 1952 Filed June 3, 1949 July 1, 1952 J. c. JOHNSON EI'AL ADHESIVE APPLYING MEANS FOR COATING RECEPTACLE CLOSURE CAPS 2 SHEETS-SHEET 2 Filed June 3, 1949 INVENTORS j l. .fo/mson y Jfl/llt-S'l/li Patented July 1, 1952 LADHESIVE-APPLIING MEANS FOR UQATING neorrrsom crosses CAPS .John fislohnson,EastlHempstead,-N. fY., and -WaltertH. Johnson, Newmanstowmfa Application :I'uue 3, 1949,. Serial No.1 96i842 SwClaims. :1 This invention relates to adhesive applying *means adapted *to coat receptacle closure caps with a=fi1nr'of-adhesi-ve priorto assembling sealing 'pad's-in=saidclosure-caps.

lt-is an object 'of theinvention to provide adhe- "sive ap-plying means of this :character consisting of an -adhes'ive transfer w'heel 'rotatably mounted on a receptacle to collect adhesive "contained therein and a series of daubers 'adjustably mounted in a peripheral edge portion of a wheel rotatably mounted rinithe plane of rotation of the adhesive trans'fer wheel .to successively position the daubers into :contact with the adhesive on the transfer wheel and subsequently into the closure capstraveling :below andJin vertical'alinement with the 'wh'eels.

it is another object :oi the invention 'to adjustably mount the adhesive transfer wheel on the receptacle wherbynsaid wheelisiadjustably positioned relative to .the adhesive in ttheireceptacle "and thedauberstto vary the amountcf adhesive applied to the daubers and :subsequently to the closure caps.

lt is a further object of theinvention to provide ascraper adjustably mounted onthe receptacle and readilyadjustable relative to the peripheral and side portions of the adhesive transfer wheel toremove excessadhesive and foreign; substances :from said wheel.

Another object of the invention :is .to .removably and adjustably mount the receptacle on closure cap assembling machines to .:fa'cilitate cleaning'and varying the height of the receptacle.

Other objects and advantages .of the invention will be set forth'in'the detailed'd'escriptionofthe invention.

In the drawings "accompanying and forming a part of thiszapplicatiomFigure .1 is aside elevastional view of the adhesiveapplying meansLfQrming the embodiment of this invention.

Figure 2 is a plan view of the means shown in Figure '1.

Figure '3 is a fragmentary sectional :view *of a dauber and'its carrying wheel to show theadjustable mounting ofthe dauber.

The embodiment of the invention is particularlyadapted to be usedin the apparatus shown in our co-pending application'serial No. 787238, filed November '20, .1947, now Patent 2,522,577, issued September 19, 1950, and the closure cap supporting rails of said apparatus are shown in a general way at l.

A receptacle 5 for "adhesive is supported from =.the table of said; closure: capassemblingapparaitus 170 extend over the :closure 'cap supporting ra'ils byta 'standarddi amountednn :said .table indicated in'a general wayrat i'iiin Figure 1 and having a transverse portion 18 :secured :at the upper end and :arrangedzat the opposite end sections with slots 9 extending dnwnwardly ifrom the upper :edge of said -transverse sp'ortion. LIfhe receptacle is provided withzproj'ections in the dorm of screws 11! secured at one"end.porti'oniinfas'side Wallof the receptacle and the :opposite end -:ada;pted to be :adjusta'bly .eng'aged ".in :the :slots 59 and "retained inadju'stediposltioniin said'.slots by'wing .nuts I I engaged on the sections of said end portions of the screws projecting from the outer aiace of the transverse :member.

The side walliof :the receptacle '5 ropposite the sidewall arranged zwithfthe projections :H! is 'providedwithaiboss ifor the pivotal-mountingof anarm 1'3 having 'a 'pin iM projecting ironi-a face at one-zend portionftherieior tandpivotally secured tin th'e'boss l2 byxa screwalfi secured inthe pin l l and abutting a washer lfi against the 'boss, as -s'hown1in Figure 2. .The opposite end .portion'of the arm 13 extends attamobtuseangletherefrom as s'hown at I11. .Atztheanglezportion between the opposite'end :portions :of the "arm, there is provide-di'a bearingib'oss :l281forrthe. rotatable mounting of a'shaft:[9*having'theopposite end portions extending from the:boss. :One of said endportions of thezsh'aft 119 supports an adhesive transfer wheelz'fl securedito'said'end portion-byscrews engaged partiallyiinsthewheelrand the end of the shaft. 'as shown at 21 in 'Figures 1 and 2. The -oppositeend'portionrofzthe shaft l9is of reduced diametenandssupports:apdlley 22 secured to said endportionsbyza set pin .2 3 as shcwn'in Figure 2.

The "adhesive transier wheel 20 is adjusted about the pivot 12, il' lirelative to the adhesive'in Ithe receptacle f5 and daubers to be hereinafter 'described. .This is accomplished by 'an adjusting member connected to rthe end portion H and comprising fa itubular vmember "internally screw threaded :and having an annular enlarged end portionnr shoulder 23' and a manipulating porition J24 at the opposite end. The intermediate .portioneof theitubular member is rotatable in a vertical extension 25 at a corner :portion of the receptacle :5. 1A screw ithreadedshank '26 is adjustably engaged "with the screw threads of the tubular member .23, 32! .and is :provided at :one iend :with :an elongated t v'ertical :slot s2! for the adjustable engagement of :a ;pin 28 secured in the .arm end portion Elfl. Illhe rotation iof .the

:tubular member "by grasping :the manipulating portion 24 will impart longitudinal movement to the shank zfi and pivotalsmovement to the arm t3.

The arm I3 is locked in adjusted position by a wing nut 29 engaged on the end portion of the shank 26 projecting from the manipulating portion 24 in abutting engagement with the manipulating portion.

Excessive adhesive and foreign substances on the transfer wheel 20 are removed by a scraper in the form of a plate 30 having slots 3[ therein for the engagement of screws 32 screw threaded in an end wall of the receptacle 5 to adjustably mount the plate on said end wall for adjusting the plate toward and away from the transfer wheel. The end portion of the plate 30 engaging the transfer wheel is bifurcated to permit engagement of the peripheral and side portions of the wheel by said end portion, as shown at 33 in Figure 2. The opposite end portion of the scraper plate 36 is flanged upwardly, as at 34, for fixed connection to one end of an adjusting member in the form of a screw 35 adjustably mounted in a lug 36 secured to a shelf portion 31 extending as a lateral extension of the top edge of the end wall of the receptacle 5 to partially support the scraper plate 30, as shown in Figures 1 and 2. The opposite end portion of the adjusting screw 35 is extended from the lug 35 and is arranged with a manipulating knob 38 secured thereto. Upon loosening of the screws 32 rotation of the screw 35 through the knob 38 adjusts the scraper plate toward and away from the transfer wheel 20 and when the scrapper plate is adjusted to a desired position, the locking nuts 32 are tightened.

The adhesive on the transfer wheel is transferred to a series of daubers rotating as a unit in the plane of rotation of the transfer wheel. Each dauber comprises an adhesive applicator or spreader 39 secured in a holder 40 having a shank 4| arranged with a tapered end 42. The shank 4! of each dauber is engaged in a corresponding opening 43 of a series of openings equidistantly spaced in the peripheral edge portion and extending radially of a wheel 44 keyed to an end portion of a shaft 45 rotatably mounted in a bearing standard 45 supported n the table I. A

pulley 41 is secured to the opposite end portion of the shaft 45 and operatively connected to the pulley 22 by a transmission belt 48. The shaft 45 is driven from the drive shaft of the closure cap assembling machine through a shaft 49 rotatably mounted in bearings 50 and supported in vertical spaced alinement by the bearing standard 46. The shaft 49 is operatively connected at the lower end to and driven by the drive shaft of the assembling machine in a suitable manner not shown. The shaft 49 is operatively connected to the shaft 45 by a worm 52 secured to the upper end portion of the shaft 49 and meshing with a worm Wheel 53 secured to the end of the shaft 45 projecting from the pulley 41, whereby the drive shaft of the assembling machine drives the adhesive transfer wheel and the dauber carrying wheel 44. The daubers are adjustably mounted in the wheel 44 to have adjustment radially of said wheel by an adjusting screw 54 having a tapering end 55 and adjustably engaged in a screw threaded opening in the wheel 44 relative to the bottom of each opening 43 to engage the tapering end 55 with the tapering end 42 of the dauber shank 4| whereby adjustment of the adjusting screw 54 into the wheel will adjust the dauber radially outward from the wheel and adjustment of the adjusting screw outwardly from the wheel will permit the daubers to be adjusted into the wheeel openings 43. The daubers are retained in adjusted position by a set screw 56 opening 43 to abut the shank 4! of each dauber, as shown in Figure 3.

By the rotation of the wheels 29 and 44, freshly adhesive coated portions of the periphery of the wheel 20 will contact and apply a film of ad hesive on the spreader 39 of successive daubers and said film of adhesive is transferred by said spreader to a closure cap C on the supporting rails 4 below and in vertical alinement with the shaft 45.

The adjustment of the adhesive transfer wheel 20 by the adjusting mechanism 232l' will vary the thickness of the film of adhesive applied by the wheel 20 to the dauber spreaders 39 and subsequently by the spreaders to the closure caps.

Having thus described our invention, we claim:

1. In adhesive applying means, an open top receptacle for adhesive, an adhesive transfer wheel rotatably supported by the receptacle with a peripheral portion of the wheel extending into the receptacle to collect adhesive thereon, a second wheel having a series of radially extending openings in the peripheral edge portion and rotatably mounted in spaced relation to the receptacle and in the plane of rotation of the adhesive transfer wheel, a series of daubers having an adhesive spreader at one end and a shank at the opposite end arranged with a tapering end for adjustable engagement in the openings in the second wheel with the adhesive spreader contacting and receiving adhesive from the adhesive transfer wheel during the rotation of both wheels, an adjusting screw having a tapering end and adjustably mounted in the second wheel relative to each opening to engage the tapering end thereof with the tapering end of the shank and adjust the dauber radially of said wheel, and a set screw adjustably mounted in the second wheel relative to each opening to engage an intermediate portion of the shank and secure the dauber in adjusted position in said wheel.

2. In adhesive applying means, an open tep receptacle for adhesive, an arm pivotally mounted at one end on a side wall of the receptacle, an adhesive transfer Wheel rotatably supported by an intermediate portion of the arm with a pcripheral portion of the wheel extending into the receptacle to collect adhesive thereon, a tubular member internally screw threaded and rotatably supported on a corner portion of the receptacle, and a screw threaded shank adjustably engaged with the screw threads of the tubular member and adjustably connected at one end to the arm whereby rotation of the tubular member imparting longitudinal movement to the shank and adjusting the axis of rotation of the adhesive transfer wheel in an are about the pivotal mounting of the arm.

3. Adhesive applying means as claimed in claim 2, wherein the screw threaded shank is adjustably engaged at an intermediate portion with the screw threads of the tubular member and has an elongated slot at one end, and a pin secured in the free end of the arm and engaged in said slot to adjustably connect'the shank to the arm and transmit longitudinal adjustment or" the shank to pivotal adjustment of the arm and vary the posi-- tion of the adhesive transfer wheel relative to the adhesive in the receptacle.

4. Adhesive applying means as claimed in claim 2, wherein the screw threaded shank is adjustably engaged at an intermediate portion with the screw threads of the tubular member and has an elongated slot at one end portion, a lock nut engaged on the opposite end portion of the shank extending from the tubular member to retain the shank in adjusted position in the tubular member, and a pin secured in the free end of the arm and engaged in said slot to adjustably connect the shank to the arm and transmit longitudinal adjustment of the shank to pivotal adjustment of the arm and vary the position of the adhesive transfer Wheel relative to the adhesive in the receptacle.

5. In adhesive applying means as claimed in claim 2, a standard having a transverse portion at the upper end arranged with elongated slots extending downwardl from the upper edge of said portion, projections secured in and extending from the receptacle to engage in said slots and removably and adjustably support the receptacle on the standard, and members removably engaged on the end portions of the projec- 20 6 tions extending from the transverse portion to secure the receptacle in adjusted position to the transverse port-ion of the standard.

JOHN C. JOHNSON.

WALTER I-I. JOHNSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 726,473 Smith Apr. 28, 1993 929,178 Wentworth July 27, 1909 933,375 Kienast Sept. 7, 1909 1,271,885 Freydberg July 9, 1918 1,409,908 Afielder Mar. 21, 1922 2,161,325 Von Hofe June 6, 1939 2,229,116 Nagy Jan. 21, 1941 2,286,801 Hannewald et a1. June 16, 1942 

